Your control of your own productivity is only partially determined by your current determination to “get something done”. To a large extend, your capability to deliver with speed and quality depends on your momentum. If you have built momentum in the direction of being 'unproductive,' your week will drag on, and you will accomplish nothing. Conversely, if you have built momentum in the direction of action and a disciplined delivery, nothing will stop you. Don’t ever attribute that flow to chance. If you want to excel, then you must have the discipline to start building momentum towards productivity now.